/Engine/Source/Editor/MaterialEditor/Public/MaterialPropertyHelpers.h
static void SetVectorChannelMaskValue ( const [FString](API\Runtime\Core\Containers\FString) & StringValue, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IPropertyHandle](API\Editor\PropertyEditor\IPropertyHandle) > PropertyHandle, [TObjectPtr](API\Runtime\Core\Delegates\TObjectPtr)< [UDEditorParameterValue](API\Editor\UnrealEd\MaterialEditor\UDEditorParameterValue) > InParameter, [UObject](API\Runtime\CoreUObject\UObject\UObject) * MaterialEditorInstance )